Doctor profile · Federal record
Dr. Jonathon Posthumus, MD
Allergy & Immunology Physician (CMS: Allergy/Immunology) · Fredericksburg, VA
- NPI 1255536553
- Accepts Medicare
- 19 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
511 Park Hill Dr
Fredericksburg, VA 224013377
(540) 371-5660
fax (540) 372-6920 - Mailing address
-
Po Box 603725
Charlotte, NC 282603725
Credentials & registration
- NPI registered
- June 2007 — 19 yrs on file
- Profile last updated
- October 31, 2023
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 207K00000X — NUCC code
- State license (1)
- Virginia #0101251294
- Medicaid
- VA #1255536553
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255536553. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
7,921
Distinct HCPCS
10
Medicare allowed
$282,710
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J2357 |
Injection, omalizumab, 5 mg | 3,600 | 25 | $38 | |
95004 |
Test for allergy using allergenic extract | 1,640 | 34 | $4 | |
95165 |
Professional service for preparation and provision of 1 or more antigens | 475 | 29 | $15 | |
J0517 |
Injection, benralizumab, 1 mg | 451 | 11 | $166 | |
95117 |
Professional service for multiple injections of allergen | 393 | 72 | $12 | |
95024 |
Test for allergy using allergenic extract injected into skin | 321 | 15 | $7 | |
96372 |
Injection of drug or substance under skin or into muscle | 279 | 63 | $14 | |
95115 |
Professional service for single injection of allergen | 171 | 35 | $10 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 154 | 106 | $125 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 140 | 117 | $88 |
In context: peer comparison
Among 4 peers in Fredericksburg Allergy & Immunology Physician, average services per provider: 530. This provider delivers 15× the peer median.Open Payments
Industry payments received
All-time total
$1,330
Transactions
63
Manufacturers
11
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 20 | $405.74 | |
| Regeneron Healthcare Solutions, INC. | 11 | $267.16 | |
| GlaxoSmithKline, LLC. | 12 | $214.44 | |
| Genzyme Corporation | 7 | $165.32 | |
| Takeda Pharmaceuticals U.S.A., INC. | 2 | $59.59 | |
| Pharming Healthcare, INC. | 3 | $59.05 | |
| Amgen INC. | 3 | $52.81 | |
| Kaleo, INC. | 2 | $42.54 | |
| Grifols USA, LLC | 1 | $25.04 | |
| Leo Pharma INC. | 1 | $19.65 | |
| Lilly USA, LLC | 1 | $18.46 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
614
Patients
217
Total drug cost
$124,989
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Montelukast Sodium | Generic | 86 | 27 | $1,452 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 81 | 35 | $2,535 |
| Azelastine Hcl | Generic | 74 | 29 | $3,680 |
| Prednisone | Generic | 54 | 25 | $168 |
| Epinephrine | Generic | 46 | 42 | $9,687 |
| Fluticasone Propionate | Generic | 41 | 20 | $832 |
| Ipratropium Bromide | Generic | 41 | 16 | $1,478 |
| Advair Hfa (Fluticasone Propion/Salmeterol) | Brand | 39 | 0 | $26,981 |
| Symbicort (Budesonide/Formoterol Fumarate) | Brand | 34 | 0 | $20,119 |
| Arnuity Ellipta (Fluticasone Furoate) | Brand | 26 | 0 | $5,980 |
Frequently asked questions
What is Dr. Jonathon Posthumus's medical specialty?
Dr. Jonathon Posthumus practices Allergy & Immunology Physician in Fredericksburg, VA.
Where does Dr. Jonathon Posthumus practice?
Dr. Jonathon Posthumus practices at 511 Park Hill Dr, Fredericksburg, VA 224013377. Office phone: 5403715660.
What is Dr. Jonathon Posthumus's NPI?
Dr. Jonathon Posthumus's National Provider Identifier (NPI) is 1255536553, issued by NPPES.
Does Dr. Jonathon Posthumus accept Medicare assignment?
Yes. Dr. Jonathon Posthumus accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jonathon Posthumus commonly perform?
Top Medicare-reported procedures in 2023: Injection, omalizumab, 5 mg (HCPCS J2357); Test for allergy using allergenic extract (HCPCS 95004); Professional service for preparation and provision of 1 or more antigens (HCPCS 95165). Source: CMS Medicare Physician & Other Practitioners file.